baber/WOPTO huggingface dataset:
Patent GB-571603-A (GB)
Title: Improvements in and relating to plasticising or reclaiming vulcanised rubber
IPC: C08J11/24
Filed: 1943-08-11
Abstract: Vulcanized rubber is reclaimed by treating it in a finely-divided state with about 4 per cent of an aromatic compound having at least one hydroxyl group directly attached to a polycyclic nucleus, or of a ketonic isomer of such a body, at a temperature of 120-170 DEG  C. and preferably at 140-170 DEG  C., in an autoclave or digester, for a period of 1 to 3 hours.  Specified compounds are a - and b  - naphthols and anthrone.  The heat treatment, which may comprise a warming-up stage of half an hour, a period of two hours at the maximum desired temperature followed by a cooling period of half an hour, is preferably followed by mechanical working on a roller mill. The second Provisional Specification also describes the addition of volatile solvents such as xylene to the mixture.
Patent GB-1192899-A (GB)
Title: Epoxide Resin Seals
Inventor: LOVELOCK LEONARD ROBERT
IPC: C08J7/046
Filed: 1969-03-12
Abstract: 1,192,899. Cable joints. STANDARD TELEPHONES & CABLES Ltd. 12 March, 1969, No. 13033/69. Addition to 1,080,787. Heading H2E. [Also in Division C3] In a method of bonding a filled epoxide putty to the prepared surfaces of a polyethylene cable sheath and a polyethylene sleeve member in a cable joint, as described in the parent Specification, the filler in the putty comprises wholly or partly a flexible substance such as powdered polyethylene, nylon, or PVC., so that the putty seal may be removed by paring if necessary. A primer which comprises a resin, a hardener, and an accelerating agent, is first applied to the surfaces, and is not cured until the putty has been applied. In a preferred putty composition (see Division C3) the filler includes polyethylene powder. An openweave tape loaded with primer may be employed, as described in Specification 1,081,350.
Patent GB-1084031-A (GB)
Title: Improvements in or relating to variable condensers
Inventor: SACHS PETER
Filed: 1964-03-31
Abstract: 1,084,031. Capacitors. MARCONI CO. Ltd. Jan. 12, 1965 [March 31, 1964], No. 13091/64. Heading H1M. [Also in Division G1] In a variable capacitor, an insulating tube A1 of PVC, PTFE or nylon, is coated with a conductive layer A3 and contains acidified water the capacitance being varied as a result of a change in height of the acidified water which occurs when e.g. the pressure above it alters. An extension A2 to the tubes A1 connects it to a water tank 6 via a flexible hose 5 and metal tube 4, electrical connections being made via the points 7 and 8. Each insulating tube A1, B1 may have a helical shape if small changes in capacitance are to be detected and wires running through the tubes A1, B1 may provide an alternative form of connection to the acidified water. The Specification describes how the capacitor is incorporated into an indicating and/or recording circuit (see Division G1).
Patent GB-312470-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F22B1/08
Filed: 1928-05-04
Abstract: 312,470. Superheater Co., Ltd., (Compagnie des Surchaufeurs Soc. Anon.). May 4, 1928. Heating by indirect contact of steam or other vapour.-A boiler is heated by steam or other vapour generated in a closed circuit comprising a heat exchanger having loop-tubes 3 connected at their ends to superposed header chambers 4, 5, each tube loop being so formed that it has a substantially continuous decline from inlet to outlet and a duct 9 of small area connecting the header chambers to drain off condensate.
Patent GB-748776-A (GB)
Title: Improvements relating to wired electrical-signal-distributing systems
Inventor: GARGINI ERIC JOHN
IPC: H04N7/10
Filed: 1953-05-12
Abstract: 748,776. Distributing music &c. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 7, 1954 [May 12, 1953], No. 13190/53. Class 40 (4). In a wired broadcasting system, particularly one for distributing television programmes, a signal distributing unit 1 feeds main feeders 2, 3 from which spur feeders 4, 10 respectively, are branched, the lengths of successive spur feeders decreasing linearly with the distances of the corresponding branch points from the distributing unit. Each distributing unit thus. serves a rhombic area and a large area may be served by a plurality of such units each receiving signals from a master distributing station over an untapped feeder. Specification 704,141 is referred to.
Patent GB-927799-A (GB)
Title: Improvements in or relating to synchronising means for independently-driven members
Inventor: GARDINER HERBERT WILLIAM BENJA
IPC: H02P5/52
Filed: 1960-04-13
Abstract: 927,799. Control of several A.C. motors. GENERAL ELECTRIC CO. Ltd. July 13, 1961 [April 13, 1960], No. 13192/60. Class 38 (3).  Relates to a lamp-making machine in which a rotatable head 7 carrying supports 8 transfers components to corresponding supports 9 carried by rotatable head 10, it being necessary for each support 9 to register with a corresponding support 8 when a component is released by the latter. The heads 7, 10, are driven individually by synchronous motors 1, 2 and, after both motors have reached their normal operating speed, a push-button switch S is actuated to disengage dog-clutch 16. The head 7 will commence to slip back with respect to the head 10 since the drive from the motor 1 is taken through a fluid coupling 11, the resultant variation in phase of the rotors of magslip generators 18, 19, producing a variation in the input voltage to a null-detector 22. When the supports 8, 9 have reached their correct relative positions, the input voltage to the detector 22 decreases to zero whereby relay R1 de-energizes winding 17 to engage the clutch 16 and lock the shafts 13, 15. The head 7 then travels at the correct speed and with the correct phase relationship relative to the head 10, the magslip generators being disconnected. In another arrangement, the magslip generators are replaced by camoperated switches, each associated with one of the motors, and operated simultaneously when the heads have the desired relationship to engage the clutch. The switches, which are normally closed, are opened intermittently by the cams, the arrangement being such that simultaneous opening of the switches deenergizes a relay to break the circuit through the control winding of the clutch. In a further embodiment, the fluid slip coupling is replaced by a motor-driven switch connecting the terminals of one synchronous motor repeatedly to different leads of a three-phase source so as to vary the relative phase-positions of the motors until an output signal is derived from the null detector. In an alternative system, an impedance is connected in series with one of the motors which runs as an induction motor until an output signal from the null detector removes the impedance to enable the motors to rotate in synchronism with each other, when the heads occupy the desired phase relationship.
Patent GB-131938-A (GB)
IPC: B01D5/00
Abstract: 131,938. Bregeat, J. H. Nov. 29, 1917, [Convention date]. Addition to 128,640. Volatile liquids, recovering.-The process described in the parent Specification is applied to the recovery of propyl or butyl alcohol or methyl, propyl, or butyl acetate.
Patent GB-1407338-A (GB)
Title: Maize harvesting header
IPC: A01D45/02
Filed: 1973-03-20
Abstract: 1407338 Corn header WHITE MOTOR CORP OF CANADA Ltd 20 March 1973 [20 March 1972] 13207/73 Heading A1F A corn header for use with a combine harvester is characterised by having means of adjustment in transverse position, stalk rolls with sideways resilience and an oil immersed gear train including a safety clutch on the input shaft. The gear box 14 is attached to the harvester front beam 12 by clamps 15 and is driven by a hexagonal shaft 59 which is connected to the hollow concentric output shaft 72 by a safety clutch 75. Each end of the output shaft 72 carries a bevel gear 80 to drive a gathering chain 60 via a shaft 67 and a sprocket 66. The forward end of the chain is carried by a shaft 63 in a block 64 which is slidably mounted in a box section 26 attached to the gearbox 14 and is tensioned by a spring assembly 65. At the centre of the output shaft 72 is a double bevel gear 58 driving via gears 57, 57' the two stalk roll shafts 55, 55' which are supported in the gearbox wall by spherical ball races 56, 56'. Each shaft carries a number of radial vanes 22 whose tapered contours define a mouth 19 converging to an overlap between the stalk rolls and provide the snapping action against the stripper plates 32. The forward end of the shaft 55 is supported by needle rollers within a housing 52, vertical loads being transferred to a slider 41 in a guide 51 attached to the box section 26. The slider 41 in combination with a bolt 50 and a washer 48 provides a preloaded inner position and also allows a limited outward movement of the stalk roll against a spring 45. A bolt 40 connecting the housing 52 to the slider 41 carries an adjustable trash knife at its lower end and passes through an elongated hole 53 at its upper end to support the front end of the stripper plate 32. A short auger 18 is carried at the extreme forward end of each stalk roll. The gearbox has a removable top cover and is oil-filled, the four bearings in the walls having rotary seals. The entire header is free to move sideways on the harvester after releasing the clamps 15, the hexagonal drive shaft 59 which is common to all headers on the harvester sliding within the output shaft.
Patent GB-132576-A (GB)
Title: Improvements in or relating to Furnaces for Distillation of Coal, Shale and other like Substances.
Inventor: ANDERSON FREDERIC ALFRED
IPC: C10B7/06
Filed: 1918-08-14
Abstract: 132,576. Anderson, F. A., Deacon, M., and Brady, N. P. W. Aug. 14, 1918. Destructive distillation, furnaces for. - Coal, shale, and like substances are distilled in a furnace in which the temperature is highest towards the centre and falls towards the two ends. The bed A of the furnace is heated by a zigzag duct B, the windings of which are closest together at about the centre of the bed. Gases heated by burners or in ducts B<1> bv the waste heat from the material in the furnace are supplied to the duct B at one or more points and travel in the direction of the entrance to the furnace.
Patent GB-153034-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/06
Filed: 1919-05-27
Abstract: 153,034. Morley, T., Morley, F. W., Timson, S., and Timson, H. M. May 27, 1919. Circular machines.-Yarn changing, severing, and clamping means for producing horizontal stripes, running in a splicing-thread when making a welt, &c., on rib machines and other types comprise a pair of yarn-guide arms 6, 6a pivoted at the rear ends to radius bars 10 on a bracket 13 attached to the cam-box 1 and operated through connexions by a roller 31 on a pattern-controlled vertically-movable plunger 32. The arms 6, 6<a> are supported at about their centres by levers 9, 9<a> pivoted at 11, 11<a> to the bracket 13 and attached by horizontal links as 26 to levers 23, 24 on a common pivot 25. The ends 27, 30 of the levers 23, 24 are suitably formed to lie in the path of the roller 31 when it is in the high position 35, the lever 24 being thus moved forward to throw the feeder 6 into action, and the lever 23 being subsequently moved back to throw the feeder 6<a> out of action. This movement of the levers 23, 24 brings their ends 28, 29 into the path of the roller 31 when in the low position 34 to enable the feeder 6a to be thrown into action and the feeder 6 to be subsequently thrown out of action. The roller 31 when in either position 34 or 35 will strike the end 52 of a lever 51 and operate through connexions 50, 49, 46 a slide 37 carrying a yarn-shearing and clamping finger 39. The operation of separating the movable shearing and clamping element 39 from the fixed shear blade 42 and clamping-block 45 occurs after the roller has moved the nose 37 or 29 and before movement of the nose 30 or 28, i.e. while both yarn guides are at work. The slide 37 works in a block 36 let in and attached to the dial cap 5. The block 36 has formed in it a gap 38 for the reception of the lower tubular ends 7, 7a of the yarn guides when out of action. Each guide as it moves to inoperative position lays its yarn between tha separated cutting-edges 40, 41 and clamping-members 44, 45. When the roller 31 passes away from the foot 52, the non-knitting yarn is cut and clamped.
Patent GB-802292-A (GB)
Title: Containers for pliable thermoplastic materials and method and apparatus for producing same
IPC: B29C65/48
Filed: 1956-05-01
Abstract: 802,292. Making containers and closures therefor. BASSAN, M. R. May 1, 1956 [May 12, 1955 ; July 13, 1955], No. 13408/56. Class 87(2). [Also in Group XVII] A process for the manufacture of containers having walls made of thin flexible sheets of thermo-weldable plastic material comprises injection moulding, at at least one of the extremities of the body, a reinforcing rib of the same plastic material onto those edges that are to be joined, the material being injected at a temperature sufficient to produce fusion of the plastic material constituting the thin walls. In Fig. 2, the mould comprises a dished outer part 33 having a gate 34, and a piston-shaped inner part 35 having an annular rubber gasket 36 for co-operating with a rim 37 on the part 33. In operation, a tube 38 of thermoplastic sheet material is stretched over the rubber gasket 36 and a thermoplastic end sheet 39 is placed on the inner part 35. The outer part 33 is then placed in position and a plastified thermoplastic material is injected through the gate 34 to form ribs uniting the tube 38 to the sheet 39. Strengthening ribs may at the same time be moulded onto the sheet 39. The container may be closed by flattening it at its upper end as in Fig. 4 and inserting the flattened end into an injection moulding machine for applying thereto a reinforcing strip 6 complete with handle 11, screwed spout 7 and screw cap 9. Fig. 6 is a cross-section through a mould for this purpose. It comprises two parts 20, 20a having cavities for making the parts 6, 7, 9 and 11, the spout-cavity 22 containing a core for forming the passage of the spout 7. The flattened top edges of the container walls 27 are inserted from below into the cavity 21, the base of the cavity 21 being sealed by a rubber gasket 29. An injection gate 25 is made in the mould part 21. Polyvinyl chloride and polythene are suitable plastics. Several different containers (see Group XVII) are described. The stiffening ribs may be reinforced by metal wires, fiber threads or other material of high tensile strength.
Patent GB-827322-A (GB)
Title: Process and device for the manufacture of granules of a predetermined size
IPC: C05G5/30
Filed: 1957-04-26
Abstract: 827,322. Granulating machines. KNAPSACK-GRIESHIEM A.G. April 26, 1957 [April 26, 1956], No. 13447/57. Class 87(2). Granules of predetermined size are produced by feeding powdered material to an inclined circular rotary plate 1, so as to provide a layer of the material within a rolling area 17 substantially comprising the ascending half of the rotary plate, and simultaneously spraying granulation liquid on to the plate within the rolling area. Substances mentioned as suitable for granulation are crude phosphate, lime, limestone, dolomite, cement, lignite, coke, ferrosilicon, and mixtures thereof. Granules having foreign nuclei may also be formed. The rotary plate 1 has an upstanding peripheral rim 10 and the powdered material is fed to it by a vibrating charging device 4 having an overspill edge 8 and perforations 12 in its base. These perforations 12 may be wholly or partially covered by means of slides (not shown) to determine the size and position of the powdering area 18. The powdered material is fed to the charging device 4 through a casing 5 provided with shutters 7 for regulating the feed. The positions of the charging device 4 and of spraying nozzles 6 are adjustable in relation to the surface 1. An adjustable edge stripper and deflector bar 2 determines the boundary line 15 of the rolling area 17 of the granulation material. Rolling curves 3 indicate the course of granules of different sizes, those having the smallest diameter travelling nearest the centre of the surface 1, the curve nearest the right edge of the surface indicating the course taken by the largest granules just before spilling over the top of the rim 10. A peripheral flange may be provided on the upper edge of the rim 10, Fig. 7 (not shown), this flange being supplied with powder for externally drying the granules before discharge from the edge of the flange. The distribution of the powder along the charging strip and over the charging area together with the position of the spraying area determines the size of granules produced.
Patent GB-134969-A (GB)
IPC: A01M23/04
Abstract: 134,969. Rigby, W. Nov. 23, 1918. Animal traps.-A continuous-action trap comprises a pivoted platform F which is turned by a spring or weighted cord D when the catch H is released by the animal. This catch is formed on a plate J pivoted at K and carrying the bait L at its upper end. The plate is controlled by an elastic cord P and protected by a cover I. The animal is projected into the chamber A and passes by a non-return door T into a cage or water-container. According to the Provisional Specification, the platform F is made of smooth metal or glass.
Patent GB-649324-A (GB)
Title: Improvements in or relating to the processing of starch pastes
IPC: C08B30/16
Filed: 1947-05-20
Abstract: 649,324. Starch pastes. GIRDLER CORPORATION. May 20, 1947, No. 13515. Convention date, June 3, 1946. [Class 121] A process for preparing starch pastes comprises mixing starch with water to form a slurry, continuously feeding the slurry under positive pressure endwise to and through an elongated heating zone, gelatinizing the slurry in said zone by agitating and indirectly and rapidly heating the slurry in said zone, continuously discharging the resultant paste from the heating zone to a cooling zone, and rapidly cooling the paste in the cooling zone at a rate to maintain substantially that state of gelatinization obtained in the heating zone. In a preferred process the slurry is fed in a thin confined layer to and through said heating zone in which the indirect heating of the slurry is effected through a heat transfer wall, the paste in the cooling zone being cooled to a temperature below effective starch cooking temperature by feeding the paste discharged from the heating zone in a thin confined layer under positive pressure endwise to and through the cooling zone which is also elongated with a heat transfer wall, the paste in the cooling zone being cooled by agitating and indirectly cooling through said wall. The total residence time in the heating and cooling zones is preferably from 10 seconds' to 3 minutes and preferably from 10 to 15 seconds in each, the material being heated in the heating zone to a temperature preferably of 188‹ to 196‹ F. In a preferred form of construction of the heating zone and the cooling zone, an insulating jacket 18 surrounds a thin-walled heat transfer tube 19 so as to provide a space 20 for the heating or cooling medium which may be steam, water, brine or ammonia. A shaft 23 is mounted in end members 21 and 22 and the portion of the shaft 23<SP>1</SP> lying within the tube 19 is enlarged in diameter so as to leave only a small clearance such as a quarter of an inch between the tube and the shaft. The shaft is provided with two or more rows of scrapers 24, so that as the shaft is rotated the films forming on the surface of the heat transfer tube are removed practically as rapidly as formed and are violently agitated and mixed with the rest of the paste in the annular layer.
Patent GB-131446-A (GB)
Title: Improvements in the Manufacture of a Heat-insulating Material and a Fuel from Paper, also applicable to other purposes.
Inventor: EDWARDS LEOLINE ARTHUR
IPC: C10L5/44
Filed: 1918-08-20
Abstract: 131,446. Edwards, L. A. Aug. 20, 1918. Composition fuel.-From waste or other paper is prepared a light, coarse granular substance which may be treated for the production of fuel. The granular substance is obtained by soaking the paper in cold water for two or three days, breaking up the pulp thus formed into small pieces which are lightly rubbed or rolled into small pieces and then dried in the air or by other means. The granular substance is impregnated with paraffin or paraffin oil or other preferably heavy hydrocarbon and may be perfumed as well as coloured.
Patent GB-462873-A (GB)
Title: Improvements in band-pass filters
IPC: H03H7/01
Filed: 1936-05-13
Abstract: 462,873. Impedance networks. HAZEL TINE CORPORATION. May 13, 1936, No. 13543. Convention date, June 10, 1935. [Class 40 (iii)] A composite wide-range band-pass filter comprises a plurality of constant-k derived filters each passing a separate frequency band f1-f2,f3-f4 . . . fn-1-fn, where f1-f2, f2-f3, f3- f4 . . . are in arithmetical or geometrical progression. The filter described consists of a band-pass filter 29, 30, 31, 32, Fig. 6, to pass the range f1- f2, and a filter 20, 21a, b, 22, 23 to pass the range f3-f4. To maintain symmetry, the condenser 29 may be split into two condensers 29a, 29b, Fig. 1, and an impedance 33 connected between the common lead and earth. The coupling k between the inductances 21a, b, and 23, 30 and 32, is determined by the formula k=(1-h<2>).(1+h<2>) where h = ( f1 /fn) (1/n-1) and is much less than unity. The ratios f1 : f2 ; f3 : f4 are preferably much greater than unity. The Specification indicates how the individual filters are derived from constant-k derived sections (Figs. 4A, 4B, 5A, 5B, not shown) and how they are combined. Values of the components are given for a typical filter and formula are stated to enable the development of desired filters. Specifications 462,872 and 462,874 are referred to.
Patent GB-861896-A (GB)
Title: Improvements in and relating to soaps of rosin and rosin-fatty acid
IPC: C11D15/00
Filed: 1959-04-21
Abstract: A sodium or potassium rosin soap composition of improved colour is obtained by saponifying rosin or a rosin-fatty acid mixture with alkali in the presence of 0.05-0.3% by weight of the rosin of a polyphosphate.  The rosin may be gum rosin or tall oil rosin but most suitably is disproportionated wood rosin, the fatty acid is suitably hydrogenated tallow fatty acid, the saponification is generally effected with sodium or potassium hydroxide at 105-115 DEG  C., and the preferred polyphosphates are sodium and potassium pyrophosphate or tripolyphosphate, acid sodium pyrophosphate and sodium hexametaphosphate.  Sodium or potassium chloride may also be present in the composition. Specification 471,629 is referred to.
Patent GB-1447494-A (GB)
Title: Electric circuit arrangements for energising electromagnetic  relays
IPC: H03K17/687
Filed: 1973-03-22
Abstract: 1447494 Transistor operated relays; substation circuits GENERAL ELECTRIC CO Ltd 12 March 1974 [22 March 1973] 13741/73 Headings H3T and H4K A latching relay for example for a subscriber's dialling arrangement is connected in series with a capacitor to a switching circuit which in one condition connects the series circuit with the supply and in the other condition shorts the series circuit. The arrangement minimizes the power consumption and is suitable for incorporation in the chip of a M.O.S. logic circuit. When transistor 10 conducts, the pulse of current flowing through the latching reed relay switches it to one state and when 10 is off and 9 on the capacitor discharges to reverse the relay state.